Channel strip



Oct. 4, 1932. R. BEYNON ET AL CHANNEL STRIP Filed Sept. 12, 1930 a Z Z i Z Patented Oct. 4, 1932 UNITED stares .REES BEYNON, OFCHICAGO, AND'GEOEGE C. 0F GLEN EL'LYN, ILLINOIS, ASSIGN- ORS TO DRYDEN RUBBER COB-:EANY, OF CHICAGO, ILLINOIS, A'CORPORATION OF ILLINOIS CHANNEL srnrr Application filed September 12, 1930. Serial No. 481,420.

in recent years, especially in connection with automobile windows, and, as a result, many and various forms of these devices have been constructed and employed. Many of these forms involve intricate problems in design,

which increase the difficulties of forming the strip and hence their manufacturing cost. In

3 other forms, materialhas been used which .does not possess sufficient fleXlblllty to provide a good, weather-tight seal between the window panel and frame or members with which. the strip is used. On the other hand, some forms of body material are of sufhcient flexibility to provide a tight seal, but, in these cases, the strip, because of its flexibility, is difficult to handle in installing the strip in place.

V le have now constructed a very simple form of strip of a highly compressible material which provides a very strong, weathertight seal between the parts with which it is used, and, at the same time, is so reinforced as to permit its being easy to handle and to fixedly and securely fasten in place.

It is an object, therefore, of this invention to provide a channel strip from a highly compressible material having a simple design, thereby facilitating and reducing the cost of its manufacture.

It is a further important object of this invention to provide a strip for effectively sealing the joint between a vehicle window panel and frame, which is so constructed as to tightly grip the edge of the'window and, at the same time, permit its secure attachment to the window frame.

Other and further important objects of this invention willbecome apparent from the following description and appended claim.

Referring to'the drawing, which discloses various embodiments-of our invention:

Figure 1 is an isometric view of one form of our'improved channel strip.

Figure 2 is a cross-sectional view of the strip of Figure 1. .7

Figure 3 is an isometric View of a slightly modified form of strip.

Figured is a cross-sectional view of the strip of Figure 8.

Figure 5 is a fragmentarycross-sectional view through an automobileidoor showing our improved strip applied to the window frame thereof. V Figure 6 is a cross-sectional view of a slightly modified form of strip Our improved strip, according to Figures 1 and 2, comprises a molded, elongated strip formed of a highly compressible material, preferably sponge rubber. Said strip has plain back convex or dome-shaped front surface 4:. Preferably, a longitudinal channel or groove 5 is provided in the back surface 2 ofsaid strip to receive the heads of screws or the like which project from the surface to which said base is secured. Iii-this way, said screw heads do not cause the strip to be distorted when the same is secured in place. Furthermore, said channel lies directly opposite that portion of the front surface which is contacted by the edge of the window panel to facili-' and side surfaces 2 and 3 and a thick layer 6 ofhard rubber or the like vulcanized to said surface 2' to reinforce the same "and provide a relatively strong, rigid backing by means of which the strip may be readily secured in place.

The strip disclosed in Figure 6 differs from that of Figures 1 and 2 in that it is constructed with a substantially rectangular cross-sec tion which provides a plain front-surface 14 instead'of a dome-shaped front surface.

The sealin action of this stri is similar to that of the strip of Figures land 2, but will be slightly less effective due tothe substantial uniformthickness of the strip.

In Figure 5, the strip is shown in its predraws the same into sealing engagement with ferred use as applied to the upper stile 7 of a the upper side edges of said'panel.

vehicle. window frame 8. Said stile 7 is rabbeted at 9 to provide, in conjunction with the moldinglO, a groove 11 for the reception of said strip 1. In mounting the strip in place, the back of the strip is first cemented or otherwise secured to the stile 7 and the molding then secured to said stile 7 by means of screws 12 or the like.

The sealing action of said strip is also clearly shown in Figure 5. When the window panel 13 is elevated against the front surface 4 of said strip, it compresses the midportion of the strip engaged by the upper edge 18a, thereby drawing the sides 3 ofsaid strip away from the walls of the groove 11, and the front surface of the strip not engaged by the edge 13a into contact with the upper side edges of said panel 13 to thereby form a tight seal for said edges; The tension which draws the front surface 1 of said strip against the upper side edges of said panel is transmitted over the surface of the strip by the surface skin of the sponge rubber. "When the device of Figures 1 and 2 is employed as shown in Figure 5, the compression of the strip is greatly facilitated by the groove or channel 5 provided in the back portion of said strip, as will be readily appreciated from a reference to Figure 5.

While we have disclosed the channel strip 1 as applied to the upper stile of the frame 8, it is to be appreciated that the use of the strip is not so limited, as the same may be used to form a weather strip between any pair of contacting edges.

It can thus be appreciated that we have constructed a simple'form of weather strip which has great utility in sealing the joint be- In testimony whereof, we have hereunto subscribed I our names at County, Illinois] GEORGE CJREEVES. REES BEYNON.

tween two members, especially that between the upper edge of a movable window panel and its frame.

l/Ve are aware that manychanges may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and we, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

We claim as our invention A channel strip for buffing and sealing the upper edge of a window panel against its frame comprising a molded strip of sponge rubber'having a back surface adapted to be secured in said frame, said back surface having a longitudinal groove in the mid-part thereof, said strip having a V dome-shaped front surface with its highest point opposite said slot whereby when said window is elevated against said front surface it compresses the mid-part of the same over said groovethereby causing a tension to be exerted on the outer part of said'front surface which Chicago, Cook 

